LI Weipeng. Review of the mechanism and noise control of high-lift device noise[J]. ACTA AERODYNAMICA SINICA, 2018, 36(3): 372-384, 409. DOI: 10.7638/kqdlxxb-2017.0159
Citation: LI Weipeng. Review of the mechanism and noise control of high-lift device noise[J]. ACTA AERODYNAMICA SINICA, 2018, 36(3): 372-384, 409. DOI: 10.7638/kqdlxxb-2017.0159

Review of the mechanism and noise control of high-lift device noise

  • High-lift device noise has been identified as a major noise source during aircraft approach and landing. Reviews on the noise generation mechanism and noise control methods of the high-lift device noise are conducted. Challenges in understanding the physical mechanism of the noise generation and implementing effective noise control has been pointed out. We performed high-fidelity large-eddy simulations for flow past the slat, flap trailing-edge and flap side-edge separately. Based on phase-averaging analysis, proper orthogonal decomposition (POD), dynamic mode decomposition (DMD), and two-point correlations, we increase insights on the underlying physics of the high-lift device noise. The results are expected to guide the design of high efficient noise control approaches.
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